Consider the circuit shown in (Figure 1). Assume 1 =0.92 A. Part A What is the value of resistor R? Express your answer with the appropriate units. % R = Value Figure 1 of 1 Submit Previous Answers Request Answer 2.00 A Incorrect; Try Again; 2 attempts remaining Provide Feedback 10 15 Q

Answer:

Explanation:

When an object appears of a certain color, when white light falls into it and illuminates it. It simply means that it is reflecting the light of that color and it has absorbed all other colors.

For example, the leaves are reflecting green light as it absorbs all other colors of light.

The more light the object absorbs, the more heat is absorbed since light is energy. If you consider it a color, black absorbs the most heat.

Another example is; You must have heard people saying don't wear black in the summers, it is because black color absorbs all wavelengths of light and reflects none.

Whereas, all the white-colored objects reflect all wavelengths of light and therefore absorb the least heat. Taking the earlier example, light-colored clothes are preferred to be worn in summer to stay cooler as they absorb the least amount of heat.

The maximum height reached by the ball is 5.75ft , the time taken by the ball to reach is 0.71 sec and the time taken to reach the ground is 0.90 sec.

What is law of gravity?

Every particle in the universe attracts every other particle with a force that is proportional to the product of their masses and inversely proportional to the square of the distance between their centers, according to Newton's law of universal gravitation.

a) The maximum height reached by the ball can be calculated using the formula: h = vi^2/2g + h0, where h is the maximum height, vi is the initial velocity (23 ft/s), g is the acceleration due to gravity (-32 ft/s^2), and h0 is the initial height (5 ft). Plugging in these values, we get:

h = (23^2)/(2*-32) + 5 = 5.75 ft.

b) The time it takes for the ball to reach its maximum height can be calculated using the formula: t = -vi/g, where t is the time and vi and g have the same meanings as above. Plugging in the values, we get:

t = -23/(-32) = 0.71875 seconds.

c) The time it takes for the ball to fall back to the ground can be calculated using the formula: t = 2h/g, where h is the maximum height and g has the same meaning as above. Plugging in the values, we get:

t = 25.75/(-32) = 0.90625 seconds.

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Systolic pressure is the top number in a blood pressure reading and it is usually measured in millimeters of mercury (mm Hg). It measures the pressure in the arteries when the heart beats and pumps blood out to the rest of the body.

Systolic blood pressure is the maximum pressure of blood in the arteries during a heartbeat. It is the top number in a blood pressure reading, usually written as two numbers separated by a slash. The systolic pressure is a measure of the force with which the heart pumps blood around the body and is the highest pressure reached in the arteries when the ventricles are squeezing. The systolic pressure is a measure of how much pressure is required to push the blood around the body and can be affected by lifestyle, age and other health factors.

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The net electromagnetic force acting on charge A has a magnitude of 1.9 * 10⁻⁵ N and is acting in a leftward direction.

When two charges interact with one another, electrical forces are created. When there are three or so more charges present, the electric force exerted on a wireless charger is just the sum of the effects of each charge's interactions with the other charges.

(A). F = Kq1 *q1/(1cm)² - Kq1*q2/(2cm)²

F = 9 * 10⁹ * (0.7 * 10⁻⁹)²/(10⁻²)² - 9 * 10⁹ * 0.7 *4 * 10⁻¹⁸/(2*10⁻²)²

F = 4.41 * 10⁻⁵ - 6.3 * 10⁻⁵

F = -1.89 * 10⁻⁵

[tex]F_{A}[/tex] = 1.9 * 10⁻⁵ N

(B). The net positive charge acting on charging A is coming from the left.

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R410A and 404A blends must be supplied to a systems as liquids. R22 and other pure refrigerants can be added as liquid or vapor. If you're adding liquid to the suction line, do it gradually to prevent sluggish operation of the compressor or dilution and contamination of the compressor oil.

There is no dip tube on the 404a. The bottle MUST be turned over down in order to be charged as a liquids. If you keep it standing, you will charge like a gas and alter the refrigerant's characteristics, creating a whole new set of problems for yourself.

When the necessary vacuum level is obtained for systems operating in a vacuum, the vacuum always charge coolant on the high end of the partition until low and high side pressure equalize as well as fluids quits flowing after the pump has been disconnected from the system and all leaks have been fixed.

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The required amount of heat energy lost in a system when surroundings performed certain amount of work and when internal energy is increased is  calculated to be - 30 kJ.

Given that,

Work done on the system w = 75 kJ

Internal energy ΔU is increased by 45 kJ

Heat energy q lost or gained by the system = ?

From the first law of thermodynamics, mathematically, expression can be written as, ΔU = q + w

q = ΔU - w = 45 kJ - 75 kJ = - 30 kJ

The negative sign indicates that the heat energy is lost.

Thus, the amount of heat energy lost in the system is - 30 kJ.

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Answer:

V = 4/3 π R^3 = 4/3 π (D/2)^3 = 1/6 π D^3

dV / dD = 1/2 π D^2       rate of change of volume related to diameter

dV = 1/2 π D^2 dD

dV = 1/2 π 80^2 * 4 mm^3       the radius increases at 1/2 the speed of the diameter

dV = 40,200 mm^3/s

A 3000 N heavy machine is supported on the a robust foundation. The machine's weight is found to cause a static displacement of the foundation.

Why is static important?

adjective Also called "statistical," this term refers to something that is fixed or stationary. exhibiting minimal or no change a static idea; a static connection. deficient in activity, growth, or vitality: Characterizations in the work were static, especially in regard to its main characters.

What is static, anyway?

An imbalance of electrostatic force within or on surface of a material, or between materials, results in static electricity. The charge persists until it can be expelled through an electrical discharge or current.

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The oscillating magnetization has an amplitude of 475.47 T and the electromagnet field has an amplitude of 1.42 * 10¹¹ V/m.

A characteristic of electricity existing at every location in space once charge of any kind is present. The value of E, often known as the electric field strength, electric field intensity, or just the electric field, expresses the direction and intensity of the electron beam.

I = Flux = 2700 W/m²

c = Speed of light = 3 * 10⁸m/s

μ₀ = vaccum permeability = 4π * 10⁻⁷H/m

The magnetic field's fluctuating amplitude

[tex]$$\begin{aligned}& B_0=\sqrt{\frac{2 \mu_0 I}{c}} \\& \Rightarrow B_0=\sqrt{\frac{2 \times 4 \pi \times 10^{-7} \times 2700}{3 \times 10^8}}\end{aligned}$$[/tex]

B₀ = 475.47 T

The oscillatory magnetization has an amplitude of 475.47 T.

The size of the electric field's oscillations,

E₀ = c * B₀

E₀ = 3 * 10⁸ * 475.47

E₀ = 1.42 * 10¹¹ V/m

The oscillating electric field's amplitude is 1.42 * 10¹¹ V/m

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(A) The capacitor stores charge.

Therefore, having the ability to store charge is the best choice. (B) The air-filled parallel plate capacitors' expression is,is a measure of permittivity. The area of the plates is A, and their separation is d. The capacitance can be increased by either increasing the plate area or decreasing the distance between the plates.

Therefore, reducing the distance between the capacitor's plates is the best course of action.

(C) The capacitance of a parallel plate capacitor is directly proportional to the area of the plates and inversely proportional to the space between the plates. Therefore, the correct responses are "Double the plate separation and halve the plate area."

[tex]C=\frac{\epsilon_{o} A}{d}[/tex]

Here, [tex]\epsilon_{o}[/tex]

(D) The new capacitance is,

[tex]C^{1} =\frac{\epsilon_{o} A^{1} }{d^{1} }[/tex]

[tex]C^{1} =\frac{\epsilon_{o} 2A^{1} }{d^{1}/2 }[/tex]

[tex]C^{1} =4\frac{\epsilon_{o} A^{1} }{d^{1} }[/tex]

[tex]C^{1} =4C[/tex]

Therefore, the correct options are "Halve the plate separation and double the plate area".

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(a) The magnitude and direction of the force acting on the third particle is zero, as the center of mass of the three-particle system is stationary.

(b) The magnitude and direction of the force acting on the third particle is equal in magnitude but opposite in direction to the force of the other two particles, as the center of mass of the three-particle system is moving at a constant velocity rightward.

(c) The magnitude and direction of the force acting on the third particle is equal in magnitude but opposite in direction to the acceleration of the center of mass of the three-particle system.

What is center of mass?

Center of mass (also known as the center of gravity) is the average location of all the mass in a system.

It is the point at which the entire mass of an object can be assumed to be concentrated. It is used to calculate the force of gravity acting on an object, as well as its response to forces applied to it.

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When the length of each member in an experiment to build a pendulum is measured using a separate value, the random uncertainty is what accounts for the little discrepancies in length reporting.

These are mistakes that are regularly made during an experiment due to poor design, an inherent flaw, or a constraint in the instrument. They could also be the result of subpar experimental methods.

Both a comprehensive quantification of these flaws and the improvement of experiment reliability by repetition are impossible. However, they can be enhanced by altering the experimental strategy, enhancing the measurement methods, etc.

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The bow (front) of the ship went into the water before the rest of the ship due to the weight of the water filled in the ship.

1. The Titanic struck an iceberg, which caused the bow of the ship to flood with water. As the water filled the front compartments of the ship, the weight of the water caused the bow to sink first, pulling the rest of the ship down with it.

2. The ship broke in two as a result of the immense stress placed on the ship's structure as the bow submerged and the stern rose out of the water. The forces of the water rushing into the ship, coupled with the weight of the stern pulling the ship apart, ultimately caused the ship to break in half. Additionally, as the ship sank, the buoyancy of the stern of the ship was lost, making it vulnerable to the forces of the water, which caused the ship to fracture.

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Weight must be larger than thrust. Consider a missile with a payload of 10 kg as an illustration. It is being pulled downward by gravity with a force of 10 x 9.8, or 98 N. The force must be more that 98 N in order to lift the rocket off of the launch pad.

The rocket is still being dragged downward by Earth's gravity. Thrust is the upward force produced when a rocket consumes propellants and exhales. The rockets needs enough propellants before launch so that the gravity force pulling the rocket down is higher than the thrust propelling the rocket upward.

Escape velocity is the speed of around 11 km per s required to escape the gravity of our planet.

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The concentration of the substance if the intensity i is 60% of i0 is found to be 1275 mol/L.

The Beer-Lambert law, which connects the attenuation of light to a material's qualities, best explains the relationship between concentration and absorbance. According to the Beer-Lambert rule, a chemical solution's concentration is inversely related to how much light it can absorb.

Io => intensity of the incident light

I => intensity of light that emerges

I = 60/100 x Io

 => 0.6Io

Concentration => -2500 ln(I/Io)

                            => -2500 ln(0.6)

                            => 1275 mol/L

The amount of visible light emitted in a unit of time per solid angle is called luminous intensity. The lumen is the term used to describe the amount of light that comes from a source in a single second (also known as the luminous power or luminous flux).

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The response to the question is that the average force caused by frictional and air resistance on an automobile is 417.02N.

The term "force" has a particular definition in science. At this level, calling a force a pushing or a pull is quite appropriate. A force isn't something an item "has in it" or that it "contains." One thing receives a force from another. There are both living things and non-living objects in the notion of a force.

Given that,

The power generated, P = 16 hp = 11931.19 W

Speed of the car, v = 103 km/h = 28.61 m/s

We need to find the average force exerted on the car due to friction and air resistance.

We know that,

Power, P = F v

Where,

F is force exerted on the car

F = P/V

  = 11931.19/28.61

  = 417.02N

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The tha is moving through the center of the circles at a speed of 4.43 m/s. The yo-yo must run scooper down the bottom in order to reach the summit without losing any speed after slowing to a halt

Acceleration is the broad name for any process where the velocity changes. There are only two ways to ramp up: changing the pace, changing your direction, or changing both. This is because velocity is a product of both speed.

Calculation

The potential energy of the yo-yo at the top of the circle is:

PE = m * g * h

= (200 g) * (9.8 m/s^2) * (1.0 m)

= 1960 J

KE = 1/2 * m *

Thus, we can set these two expressions equal to each other and solve for the speed of the yo-yo:

1960 J = 1/2 * (200 g) *

v =√3920/200

v = √19,6

v = 4.43 m/s

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The equation for the line of best fit is y = mx + b, where m is the slope and b is the intercept.

Intercept is a mathematical concept which is used to describe the point at which a line crosses the y-axis of a graph. It is represented as a coordinate and is commonly abbreviated as (x0, y0), where x0 is the intercept on the x-axis and y0 is the intercept on the y-axis. The intercept is used to determine the position of the line relative to the two axes, and can be used to graph the equation of a line. Depending on the equation, the intercept may be positive or negative, or there may be multiple intercepts on different axes.

For the transverse standing wave experiment, the equation would be y(cm) = (0.06 cm/s)x + 10 cm, where 0.06 cm/s is the slope and 10 cm is the intercept.

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5.1.1. The force that the wall will exerts on the car during this time will be 360000N.

5.1.2. The force the wall will now exert will be 120000N.

What is force?
Force is a physical influence that is capable of changing the motion of an object or altering its shape and structure. It is a vector quantity that is measured in newtons and is often described as a push or pull. Force can be caused by many different sources such as gravity, friction, and electromagnetism. Force can also be created through the application of energy, such as when a person pushes an object or when an object is acted upon by a magnetic field.

5.1.1. The force that the wall will exert on the car during the 0.25 seconds is calculated using the equation F=m*a, where F is force, m is mass and a is acceleration.

F = 900 kg * (100 km/h / 0.25 s)

F = 360000 N

5.1.2. The force that the wall will exert on the car during the 0.75 seconds is calculated using the same equation.

F = 900 kg * (100 km/h / 0.75 s)

F = 120000 N

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The node voltages in the circuit using nodal analysis determined as v1= 30V ; v2=v3= 60V.

Any electrical network may be solved using nodal analysis, which is what it is called. the formula used to determine how much voltage is shared across circuit nodes. Since the node voltages are with respect to the ground, this method is also referred to as the node-voltage method.

Nodal analysis :  the node voltage was determined.

At node 2,

     => v2-v1/2 + v2-v3/2 - 15=0

     => -0.5v1 + v2 -0.5v3=15

At super node,

v2-v1/2 + v2-v3/2 -v1/4 -v3/8 =0

=> 2v1+v3 = 120

v1+30 = v3

Hence, solving all equation we get

v1= 30V ; v2=v3= 60V

We can solve for voltage and current in a circuit using numerous KCL equations that we acquire from nodal analysis of the circuits. There are one fewer KCL equations needed than there are nodes in a circuit.

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For the given potential energy, the value of mass equals 0.4Kg.

The energy that was previously stored in the items before they were pushed out of balance by elastic rebound, gravity, or chemical reactions is released when the objects are displaced from their equilibrium locations.

Potential energy is the energy that an object accumulates because of its position, enabling it to perform more work. An extended rubber band, for instance, is full of potential energy. Similar to this, a ball will have more potential energy when released above the ground than when it falls.

Given,

The potential energy = 15J,

height of the object = 3.75m

Using the formula,

PE= mgh

Now substituting the values in the formula,

⇒ 15 = m × 10 × 3.75    [The value of acceleration due to gravity(g) = 10]

⇒ m = 15 / 10 × 3.75

⇒ m = 0.4Kg

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(a). The voltage drop across the capacitor is zero immediately upon the switch being closed. An electronic component called a capacitor is used to store electrical energy in an electric field.

Capacitor is made up of two conductive plates, separated by an insulating material called a dielectric. When a voltage is applied across the plates, an electric field is created, causing a charge to build up on the plates. The amount of charge stored by a capacitor is directly proportional to the voltage applied across it, and is measured in units of Farads (F). Capacitors are commonly used in a wide variety of electronic circuits, including power supplies, filters, and timing circuits. They can also be used in combination with resistors and inductors to form more complex circuits, such as oscillators and resonant circuits.

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The linear velocity of the outside edge of the station is 1.1 m/s.

The equation for linear velocity is v = d/t, at which v stands for speed, d for distance, and t for time. The meter per seconds, or m/s, is the SI unit for linear velocity (ms-1). M0L1T-1 is the linear velocities dimensional formula.

The value of centripetal force is

F = mv^2/r

above equation as we know that m is the mass of the object rotating

Now as we know that

F = ma

where a is the acceleration

ma = mv^2/r

a = v^2/r

v= [tex]\sqrt{ar}[/tex]

= 1.1 m/s

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In an elliptical orbit of a planet around the sun, the sun sits at one focus and there is nothing at the other focus.

We know that in the solar system, we have the sun at the focus or the center of a set of concentric circles that is composed of the planets. We know that the planets.

We have to note that in accordance with the Kepler's law, the only thing that we can be able to find at the center of the solar system is the sun and we do not find any other thing at the focus.

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In a belt press, free water and sludge particles are separated using gravity drainage plus pressure dewatering as the main processes.

The method or technique by which a result is brought about or a goal is achieved. generally speaking, machinery or mechanical devices. the design or configuration of a machine, comparable instrument, or something similar. The clock's mechanism is an example of a mechanical device or component.

Typically, a mechanism is a component of a larger operation, also referred to as a physical device or machine. A steering mechanism of a car or the winding clockwork of either a wristwatch are two examples of complete machines that can sometimes be referred to as mechanisms.

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"Compared to its average speed in air, the average speed of a beam of light in glass is less."

The expression for refractive index of a medium is given as, μ = c/ν

where,

μ is the refractive index of the medium

c is speed of light in the vacuum

ν is the speed in the medium of refractive index μ

As, the speed of light in vacuum is constant, μ ∝ 1/ν

Any media's refractive index and the speed of light in that medium are inversely related. Given that glass has a greater refractive index than air, light travels slower through glass than through air. So, option (A) and (B) are incorrect and option (C) is correct.

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When scientists refer to the cosmos as expanding, they indicate that it has been expanding ever since the Big Bang, when the universe first began. Outside of our own galaxy, the galaxies are veering away from us.

The universe can have one of three fundamental forms: a flat one with Euclidean or zero curvature, a spherical one with positive curvature, or an open one with hyperbolic curvature (negative curvature).

No, the universe contains every galaxy and solar system known to us. While the universe as a whole is composed of billions of galaxies, the Milky Way Galaxy alone includes hundreds of billions of stars, including our Sun.

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A parking brake select one , can be called an emergency brake because it will always stop you if your brakes fail.

Break means to cause something to separate into pieces, either by violently hitting it or dropping it. Brake refers to a device used to reduce the speed of a moving vehicle or to stop it by pressing it.

Just below the steering wheel, you'll generally find two pedals. The brake pedal is on the left side regardless of whether it is a left or right-hand drive car. You have to depress the brake to slow down or bring your car to a halt.

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The least energy of the incident photon if the tightly bound electron by the photoelectric effect needs 4.2 ev to remove is 6.8eV

When light with a high enough frequency is impacted upon a metal surface, a phenomena known as the photoelectric effect occurs when electrons are released from the metal surface. Heinrich Hertz first described the idea of the photoelectric effect in 1887, and Lenard followed in 1902. But Maxwell's idea of light as an electromagnetic wave was unable to account for either of the photoelectric effect data. Hertz, who had shown the validity of the wave theory, chose not to explore the issue because he was confident that the wave theory could account for it.

According to Einstein's equation,

[tex]E=W_{o} +KE[/tex]

Given,

[tex]W_{o_{max} } =\\[/tex]4.2eV

KE=2.6eV

E=4.2eV+2.6eV

E=6.8eV

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